What should you know about chronic exfoliative cheilitis?

The lips may shed thin layers repeatedly, leaving tenderness, redness, crusting or a tight sensation. Lip licking, picking, irritating cosmetics, contact allergy, dry air and an underlying skin condition can keep the surface inflamed. Peeling alone does not identify one cause, so a clinician may ask about products, habits, medicines and symptoms elsewhere on the skin. Persistent cheilitis can resemble infection or another inflammatory lip disorder, which is why a lasting change deserves an examination.

Stop peeling or biting the loose skin, and avoid fragranced balms, flavouring agents and products that sting. Apply a bland protective ointment often, especially after eating, drinking and washing; an emollient helps reduce water loss and friction. Protect the lips from wind and strong sun, drink normally, and note which products or habits precede flares. A dermatologist may recommend a short, carefully chosen topical corticosteroid when inflammation is prominent; use it only as directed because lip skin is delicate.

Arrange a medical review when peeling keeps returning, does not settle with gentle protection, or interferes with eating, speaking or sleep. Seek prompt care for rapidly increasing swelling, spreading redness, pus, fever, marked pain, bleeding that does not stop, or a firm sore that does not heal. Bring the lip products and medicines you use so possible irritants and treatment choices can be discussed.

Could this be contact allergy, eczema, infection or another form of cheilitis? Which ingredients should I avoid? Is an emollient enough, or would a topical corticosteroid be appropriate? How long should I use the treatment, and what changes would require reassessment?